Reliability

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Reliability

Overview

Automation Service is committed to delivering 99.95% SLA uptime. Bizagi Automation Service uses Web Apps technology that encompasses the Azure App Services' global infrastructure. This true cloud technology lets Bizagi assure the reliability of your Automation Service. Reliability is one of the three main pillars offered by Automation Service, as described at Automation Service overview.

 

The infrastructure behind the service is designed for availability and resiliency, and this includes storage, networks, and communications. Bizagi conducts 24x7 monitoring on the services and underlying technology with regions around the world where data centers are located to provide higher performance and meet data location requirements.

 

Web apps technology - true cloud

Bizagi Automation Service infrastructure is built using Azure App Services. Compare to a single Virtual Machine, a Web App uses a full stack of active dedicated servers where the Web App can run from the Azure Service Fabric. These servers are pre-provisioned in a data center of the region that you choose for your service where the Bizagi web apps are provisioned. See the Bizagi Automation Service Architecture and learn about the Bizagi web apps.

 

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Therefore, if one server suffers a failure, the web app is redirected to another pre-provisioned and warm server. So users do not see any downtime in the service. Web Apps only contains the logic and functions layer underlying a web application, for example, to run the Work Portal. Data and other confidential information are not stored in any web app but in the database.

 

All the servers of one web app are located within the same region. If you want to have full redundancy of all architecture's web apps, you can acquire the Disaster Recover full replica service.

 

Database and storage reliability

One of the most important components in Bizagi Automation Services is the storage layer and the database. Reliability is designed for all underlying services of Automation Service and especially enforced through a highly available storage layer, which is set up by making the most out of replication and data redundancy mechanisms. Bizagi configures the storage layer based on two reliability principles: redundancy and backups.

 

Database reliability

A database is comprised of two main files: data and logs. Both files have a local redundancy in a storage account located in the same region, where three replicas of the files are stored. When the database needs to execute a transaction, it runs the transaction using the transient data in a server. The Azure service fabrics, similar to web the apps, run several pre-provisioned fail-over servers, so in case one server fails, still have a set of servers ready to execute transactions of the database. Additionally, Bizagi executes backups to have a full reliability strategy.

 

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Database backups

As an additional safety measure, Bizagi performs different type of backups of the production environment database.

 

Transaction log backups every 10 minutes

Differential backups every 24 hours

Full backup every week.

 

These backups are stored under the same region. In case of any failure of the main database, Bizagi can restore the database using any of the previous backups.

 

If you need to replicate your database having a read-access geo-redundancy in different regions  you can purchase the Disaster Recovery - Database only service.

 

Storage redundancy

Bizagi uses cloud storage for tables and files that are replicated with Geo-redundancy (GRS) to protect against hardware failures and increase system reliability. The GRS first copies the data three times in a local region synchronously, and then asynchronously moves these physical copies to a second paired region.

 

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The storage account is used for tables and files. It does not include the database.

 

Additional information

If Bizagi does not achieve the SLA Commitment in any given month, the customer will be eligible to receive Service Credits towards a portion of the monthly service fees.